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At 25 °C only 0.0220 mol of the generic salt AB2 is soluble in 1.00 L of water. What is the Ksp of the salt at 25 °C?
AB2(s) = A2+(aq)+2B-(aq)
Ksp = ________
household bleach is a 5 mass aqueous soln. of sodium hypochloritenaocl. what is the molality of the bleach. what is
The methylamine hydrochloride dissociates completely in water to form methylammonium ion (CH3NH3+) and chloride ion.
Problem- At a certain temperature, the solubility of N2 gas in water at 2.38atm is 56.0mg of N2 gas/100 g water. Calculate the solubility of N2 gas in water, at the same temperature, if the partial pressure of N2 gas over the solution is increased..
The LC50 measurde for fathead minnows, during a 96-h exposure test, is 151 mg/L for caffeine(C8H10N4O2) and 44.1 mg/L for TCE(C2Cl3H).
Sugar (C6H12o6) combusts and releases 246.8 kJ what is the complete chemical reaction? What is the enthalpy of the reaction
Why was cold deionized water added to the reaction mixture rather than hot water, and what is the purpose of acetic acid?
Formic acid, HCHO2, is used to make methyl formate (a fumigant for dried fruit) and ethyl formate (an artificial rum flavor). Ka= 1.7e-4. What is the pH of a 0.39 M solution of formic acid?
Question- Synthesize 3-methyl-2-hexanoic acid (mixture of E and Z isomers) from starting materials that have 5 or fewer carbon atoms.
Problem- Sulfuric acid dissolves aluminum metal according to the following reaction: 2Al(s)+3H2SO4(aq)-----=Al2(SO4)3(aq)+3H2(g) Suppose you wanted to dissolve an aluminum block with a mass of 14.9g. What minimum mass of H2SO4 would you need?
At 25 °C, the vapor pressure of acetone is 230 mmHg and the vapor pressure of toluene is 284.5 mmHg. What is the total vapor pressure at 25 °C above an equimolar mixture of these two miscible liquids?
What is H in kJ for the process of freezing a 39.2 g sample of liquid antimony at its normal melting point of 631oC. is it positive or negative
A buffer is prepared by dissolving .0250 mol of sodium nitrite in 500 ml of 0.0329 M nitrous acid. Assume no volume change after NaNO3 is dissolved. calculate the pH of this buffer.
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